CN114352846A - Long-life desulfurization slurry pipeline and manufacturing method thereof - Google Patents
Long-life desulfurization slurry pipeline and manufacturing method thereof Download PDFInfo
- Publication number
- CN114352846A CN114352846A CN202210014055.2A CN202210014055A CN114352846A CN 114352846 A CN114352846 A CN 114352846A CN 202210014055 A CN202210014055 A CN 202210014055A CN 114352846 A CN114352846 A CN 114352846A
- Authority
- CN
- China
- Prior art keywords
- parts
- wear
- layer
- primer
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 29
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 25
- 230000023556 desulfurization Effects 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 229920005989 resin Polymers 0.000 claims abstract description 49
- 239000011347 resin Substances 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 238000000576 coating method Methods 0.000 claims abstract description 44
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 42
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 238000005728 strengthening Methods 0.000 claims abstract description 39
- 239000003365 glass fiber Substances 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000003999 initiator Substances 0.000 claims abstract description 13
- 230000001680 brushing effect Effects 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical group CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 36
- 239000004593 Epoxy Substances 0.000 claims description 36
- 229910017052 cobalt Inorganic materials 0.000 claims description 36
- 239000010941 cobalt Substances 0.000 claims description 36
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 36
- 229920002554 vinyl polymer Polymers 0.000 claims description 36
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 9
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 24
- 229920001568 phenolic resin Polymers 0.000 description 12
- 238000002791 soaking Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 239000010440 gypsum Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920003986 novolac Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013521 mastic Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 208000036828 Device occlusion Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention belongs to the technical field of pipeline protection, and particularly discloses a long-life desulfurization slurry pipeline and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: 1) coating a primer on a pipeline substrate, wherein the primer comprises 95-105 parts of resin, 1-2 parts of initiator and 2-4 parts of accelerator; 2) the preparation method comprises the following steps of (1) coating glass fiber cloth soaked by a primer and glass fiber cloth soaked by a reinforcing liquid, blade-coating wear-resistant daub, coating glass fiber cloth soaked by the reinforcing liquid and a thick chopped fiber mat, and blade-coating the wear-resistant daub again, wherein compared with the primer, the raw material of the reinforcing liquid also comprises 95-105 parts by weight of silicon carbide, and the difference between the wear-resistant daub and the reinforcing liquid is that the parts of the silicon carbide are 190 plus 210 parts; 3) and (5) brushing the strengthening liquid and maintaining. The invention improves the wear resistance and corrosion resistance of the pipeline, prolongs the service life of the pipeline and effectively reduces the probability of the occurrence of the blockage accident of the device behind the pipeline.
Description
Technical Field
The invention relates to the technical field of pipeline protection, in particular to a long-service-life desulfurization slurry pipeline and a manufacturing method thereof.
Background
At present, most steel plants or power plants are still known to adopt wet desulphurization, in particular to adopt a limestone-gypsum wet desulphurization system for desulphurization treatment, and the limestone-gypsum wet desulphurization system mainly adopts a rubber-lined steel pipe for conveying desulphurization slurry. In the using process, the desulfurization slurry is in weak acidity under normal conditions, the pH value is 6-7, the chloride ion content is less than 10000ppm, and the solid content is less than 13%. However, as the production time is accumulated, the pH value of the desulfurization slurry is 4-7, the chloride ion content can exceed 30000ppm at most, and the solid content can exceed 25% at most in the actual production process. Therefore, in the actual production and use process, the pipeline lining rubber layer is easy to wear, swell and fall off, the fallen rubber can cause the blockage of a rear swirler spraying device and the like, so that the production and desulfurization efficiency is influenced, and slurry is sprayed outwards after the pipeline at the rubber falling part is corroded and penetrates to cause environmental pollution accidents. That is to say, the problem that the rubber lining layer is worn, bulges and falls off easily appears in the current inside lining rubber steel pipe, and the problem that the steel pipe is easily corroded, life is shorter.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention aims to provide a long-life desulfurization slurry pipeline and a manufacturing method thereof, which are used for solving the problem that the rubber-lined steel pipe in the prior art is easy to wear, bulge and fall off, so that the service life is short.
To achieve the above and other related objects, the present invention provides a method for manufacturing a long-life desulfurization slurry pipe, comprising the steps of:
s1, coating a primer: coating a primer on a pipeline substrate to form a primer layer, wherein the primer comprises 95-105 parts of resin, 1-2 parts of initiator and 2-4 parts of accelerator in parts by mass;
s2, laying base layer lining: laying glass fiber cloth soaked by a primer on the primer layer of the pipeline substrate;
s3, applying a mid-a layer liner: laying glass fiber cloth soaked by strengthening liquid on the base lining, wherein the strengthening liquid comprises, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 95-105 parts of silicon carbide;
s4, carrying out primary blade coating of wear-resistant daub: coating wear-resistant daub on the middle-a layer lining to form a base layer wear-resistant daub layer, wherein the raw materials of the wear-resistant daub comprise, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 190-210 parts of silicon carbide;
s5, applying a mid-b layer liner: spreading glass fiber cloth soaked by the strengthening liquid in the step S3 on the wear-resistant mortar layer of the base layer;
s6, applying an inner lining: applying the thick chopped strand mat wetted by the reinforcing liquid in the step S3 and the glass fiber cloth wetted by the reinforcing liquid in the step S3 on the middle-b layer lining in sequence;
s7, secondary blade coating of wear-resistant daub: coating the wear-resistant daub obtained in the step S4 on the inner lining in a blade mode to form an inner wear-resistant daub layer;
s8, brushing strengthening liquid: coating the reinforcing liquid obtained in the step S3 on the inner wear-resistant daub layer;
and S9, curing and solidifying.
Optionally, steps S1-S8 are all performed in an environment with a temperature of 15-30 ℃ and a relative humidity of less than 80%.
Optionally, before step S1, the pipeline substrate is pretreated, and the pretreatment includes dust removal treatment, degreasing treatment and rust removal treatment.
Alternatively, in step S2 and step S6, the glass cloth has a thickness of 0.2-0.4 mm.
Optionally, in step S6, the thick chopped strand mat has a thickness of 1-3 mm.
Alternatively, in step S3 and step S5, the glass cloth has a thickness of 0.4-0.8 mm.
Optionally, in steps S4 and S7, the thicknesses of the base layer wear-resistant mastic layer and the inner layer wear-resistant mastic layer are 2-3 mm.
Alternatively, in step S2, the number of layers of glass cloth is 2-3 layers applied on the primer layer of the pipe substrate.
Optionally, in step S3, the fiberglass cloth is applied to the primary backing in a number of layers ranging from 8 to 10.
Optionally, in step S5, the number of layers of glass fiber cloth is 3-5 layers on the base wear-resistant plaster layer.
Optionally, in step S6, the thick chopped strand mat is applied to the mid-b liner in a number of layers from 1 to 2 and the fiberglass cloth is applied in a number of layers from 2 to 3.
Alternatively, in step S9, the natural curing is performed at normal temperature in a dry environment for 15 days or longer.
Optionally, the resin is a novolac epoxy vinyl resin.
Optionally, the initiator is methyl ethyl ketone peroxide.
Optionally, the promoter is cobalt isooctanoate.
Optionally, the acid resistance of the silicon carbide is more than or equal to 95%, the water content of the silicon carbide is less than or equal to 0.5%, and the fineness of the silicon carbide requires: the balance of the 0.15mm sieve mesh is less than or equal to 5 percent, and the balance of the 0.09mm sieve mesh is less than or equal to 30 percent.
The invention also provides a long-life desulfurization slurry pipeline prepared by the preparation method.
As described above, the method for manufacturing a long-life desulfurization slurry pipeline according to the present invention has the following advantageous effects: according to the invention, the coating is manufactured on the pipeline substrate by adopting a unique manufacturing method, so that the coating comprises a strengthening layer, an inner wear-resistant daub layer, an inner lining, a middle-b layer lining, a base wear-resistant daub layer, a middle-a layer lining, a base lining and a bottom coating from outside to inside, and the middle-a layer lining, the middle-b layer lining and the inner lining are soaked by strengthening liquid and then applied, so that the bonding is firm and the coating is not easy to fall off. Therefore, the coating has excellent wear resistance and corrosion resistance, and is not easy to fall off from the pipeline substrate, so that the wear resistance and corrosion resistance of the pipeline are improved, the service life of the pipeline is prolonged, and the probability of blockage of a device behind the pipeline and environmental accidents is effectively reduced.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention provides a long-life desulfurization slurry pipeline, and a manufacturing method of the long-life desulfurization slurry pipeline comprises the following steps:
step one, pretreatment: and (3) pretreating the pipeline substrate, wherein the pretreatment comprises dust removal treatment, oil stain removal treatment and rust removal treatment.
Step two, coating a primer: and (2) coating a primer on the pipeline substrate, curing the primer to form a primer layer, wherein the primer comprises 95-105 parts by mass of resin, 1-2 parts by mass of initiator and 2-4 parts by mass of accelerator. And in the process of brushing the base coating agent, brushing the second channel after the interval of at least 8 hours after the first channel of brushing the base coating agent, and brushing the base coating agent at least twice.
Step three, laying a base layer lining: soaking glass fiber cloth with thickness of 0.2-0.4mm with primer, spreading 2-3 layers of glass fiber cloth soaked with primer on the primer of the pipeline substrate, and curing to form the lining.
Step four, distributing a middle-a layer of lining: soaking glass fiber cloth with thickness of 0.4-0.8mm in reinforcing liquid, spreading 8-10 layers of glass fiber cloth soaked in reinforcing liquid on the base layer lining, and curing to form the middle-a layer lining. Wherein, the raw materials of the strengthening liquid comprise, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 95-105 parts of silicon carbide.
Step five, carrying out blade coating on wear-resistant daub for one time: and (3) coating wear-resistant daub on the middle-a layer lining in a scraping way, and curing to form a base layer wear-resistant daub layer, wherein the thickness of the base layer wear-resistant daub layer is 2-3 mm. The raw materials of the wear-resistant daub comprise, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 190-210 parts of silicon carbide.
Step six, applying a middle-b layer lining: soaking glass fiber cloth with the thickness of 0.4-0.8mm in the strengthening solution in the fourth step, spreading 3-5 layers of the glass fiber cloth soaked by the strengthening solution on the base wear-resistant daub layer, and curing to form the middle-b layer lining.
Step seven, laying an inner liner: soaking a thick chopped fiber mat with the thickness of 1-3mm and a glass fiber cloth with the thickness of 0.2-0.4mm by using the strengthening liquid in the fourth step, sequentially laying 1-2 layers of the thick chopped fiber mat soaked by the strengthening liquid and 2-3 layers of the glass fiber cloth soaked by the strengthening liquid on the middle-b layer lining, and curing to form the inner layer lining.
Step eight, secondary blade coating of wear-resistant daub: and D, coating the wear-resistant daub obtained in the step V on the inner lining in a scraping mode, and curing to form an inner wear-resistant daub layer, wherein the thickness of the inner wear-resistant daub layer is 2-3 mm.
Ninth, brushing strengthening liquid: and (4) coating the reinforcing liquid obtained in the fourth step on the inner wear-resistant daub layer.
Step ten, maintenance and curing: and naturally curing for more than 15 days at normal temperature in a dry environment.
Wherein, the second step to the ninth step are carried out at the temperature of 15-30 ℃ and under the environment of relative humidity less than 80%.
Wherein the resin is epoxy novolac vinyl resin; the initiator is methyl ethyl ketone peroxide; the accelerator is cobalt iso-octoate.
Wherein the acid resistance of the silicon carbide is more than or equal to 95 percent, the water content of the silicon carbide is less than or equal to 0.5 percent, and the fineness of the silicon carbide requires: the balance of the 0.15mm sieve mesh is less than or equal to 5 percent, and the balance of the 0.09mm sieve mesh is less than or equal to 30 percent.
The present invention will be described in detail with reference to the following specific examples. It should also be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention, and that numerous insubstantial modifications and adaptations of the invention described above will occur to those skilled in the art. The specific process parameters and the like of the following examples are also merely examples of suitable ranges, i.e., those skilled in the art can select from suitable ranges through the description herein and are not limited to the specific values of the following examples.
Example 1
A method for manufacturing a long-life desulfurization slurry pipeline comprises the following steps:
step one, pretreatment: and inspecting the surface of the pipeline matrix, removing water, oil stains, dust and medium pollutants on the surface of the pipeline matrix, and polishing. And during polishing, sand blasting is adopted for rust removal, and the sand blasting quality reaches the national standard Sa2.5 grade.
Step two, coating a primer: the method comprises the steps of coating a primer on a pipeline substrate to form a primer layer, wherein the primer layer is prepared from 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide and 3 parts of cobalt isooctanoate in parts by mass, and mixing and uniformly stirring 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide and 3 parts of cobalt isooctanoate to obtain the primer. In the step, after the first coating of the primer, the second coating is coated at an interval of 8 hours, and then the second coating is naturally cured for more than 24 hours until the primer is completely cured.
Step three, laying a base layer lining: and (3) soaking glass fiber cloth with the thickness of 0.2mm by using the primer in the second step, coating 3 layers of the glass fiber cloth soaked by the primer in the second step on the primer, and curing to form the base layer lining.
Step four, distributing a middle-a layer of lining: using a strengthening solution to soak glass fiber cloth with the thickness of 0.4mm, applying 10 layers of the glass fiber cloth soaked by the strengthening solution on the base lining, and forming a middle-a layer lining after solidification. The raw materials of the strengthening liquid comprise, by mass, 100 parts of epoxy novolac vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 100 parts of silicon carbide, wherein the 100 parts of epoxy novolac vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 100 parts of silicon carbide are mixed and then uniformly stirred to obtain the strengthening liquid.
Step five, carrying out blade coating on wear-resistant daub for one time: and (3) coating wear-resistant daub on the middle-a layer lining in a scraping manner, and curing to form a base layer wear-resistant daub layer, wherein the thickness of the base layer wear-resistant daub layer is 2 mm. The raw materials of the wear-resistant daub comprise, by mass, 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 200 parts of silicon carbide, and the wear-resistant daub is obtained by uniformly mixing and stirring 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 200 parts of silicon carbide.
Step six, applying a middle-b layer lining: soaking glass fiber cloth with the thickness of 0.4mm by using the reinforcing liquid in the fourth step, laying 5 layers of the glass fiber cloth soaked by the reinforcing liquid in the fourth step on the wear-resistant daub layer of the base layer, and curing to form the middle-b layer lining.
Step seven, laying an inner liner: soaking a thick chopped strand mat with the thickness of 3mm and a glass fiber cloth with the thickness of 0.2mm by using the reinforcing liquid in the fourth step, sequentially applying 1 layer of the thick chopped strand mat soaked by the reinforcing liquid in the fourth step and 2 layers of the glass fiber cloth soaked by the reinforcing liquid in the fourth step on the lining of the middle-b layer, and curing to form the inner-layer lining.
Step eight, secondary blade coating of wear-resistant daub: and D, coating the wear-resistant clay paste obtained in the fifth step on the inner lining in a scraping mode, and curing to form an inner wear-resistant clay layer, wherein the thickness of the inner wear-resistant clay layer is 2 mm.
Ninth, brushing strengthening liquid: and (3) coating the reinforcing liquid in the fourth step on the inner wear-resistant daub layer, and forming a reinforcing layer after curing, wherein after the reinforcing liquid is coated for the first time, the reinforcing liquid is coated for the second time at an interval of 8 hours, and then the reinforcing layer is naturally cured for more than 24 hours until the reinforcing layer is completely cured.
Step ten, maintenance and curing: and after the construction is finished, naturally curing for 15 days at normal temperature in a dry environment.
In this embodiment, the second to ninth steps are performed at 15-30 ℃ and at a relative humidity of less than 80%; the acid resistance of the silicon carbide is more than or equal to 95 percent, the water content of the silicon carbide is less than or equal to 0.5 percent, and the fineness of the silicon carbide requires that: the balance of the 0.15mm sieve mesh is less than or equal to 5 percent, and the balance of the 0.09mm sieve mesh is less than or equal to 30 percent.
Example 2
This embodiment differs from embodiment 1 only in that: the formulation of the primer, the strengthening liquid and the wear-resistant daub in this embodiment is different from that in embodiment 1, specifically, the primer in this embodiment is composed of 100 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide and 2 parts of cobalt isooctanoate, the strengthening liquid is composed of 95 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide, 2 parts of cobalt isooctanoate and 95 parts of silicon carbide, and the wear-resistant daub is composed of 100 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide, 2 parts of cobalt isooctanoate and 200 parts of silicon carbide.
Example 3
This embodiment differs from embodiment 1 only in that: the formulation of the primer, the strengthening liquid and the wear-resistant daub in this embodiment is different from that in embodiment 1, specifically, the primer in this embodiment is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide and 4 parts of cobalt isooctanoate, the strengthening liquid is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide, 4 parts of cobalt isooctanoate and 105 parts of silicon carbide, and the wear-resistant daub is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide, 4 parts of cobalt isooctanoate and 210 parts of silicon carbide.
Example 4
This embodiment differs from embodiment 1 only in that: the formulation of the primer, the strengthening liquid and the wear-resistant daub in this embodiment is different from that in embodiment 1, specifically, the primer in this embodiment is composed of 95 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide and 2 parts of cobalt isooctanoate, the strengthening liquid is composed of 95 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide, 2 parts of cobalt isooctanoate and 95 parts of silicon carbide, and the wear-resistant daub is composed of 95 parts of epoxy phenol formaldehyde vinyl resin, 1 part of methyl ethyl ketone peroxide, 2 parts of cobalt isooctanoate and 190 parts of silicon carbide.
Example 5
This embodiment differs from embodiment 1 only in that: the formulation of the primer, the strengthening liquid and the wear-resistant daub in this embodiment is different from that in embodiment 1, specifically, the primer in this embodiment is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide and 4 parts of cobalt isooctanoate, the strengthening liquid is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide, 4 parts of cobalt isooctanoate and 105 parts of silicon carbide, and the wear-resistant daub is composed of 105 parts of epoxy phenol formaldehyde vinyl resin, 2 parts of methyl ethyl ketone peroxide, 4 parts of cobalt isooctanoate and 210 parts of silicon carbide.
Comparative example 1
This comparative example differs from example 1 only in that: the ratio of the primer, the strengthening liquid and the wear-resistant daub in the comparative example is different from that in example 1, specifically, the primer in the comparative example is composed of 100 parts of epoxy phenolic vinyl resin, 0.7 part of methyl ethyl ketone peroxide and 1.5 parts of cobalt isooctanoate, the strengthening liquid is composed of 100 parts of epoxy phenolic vinyl resin, 0.7 part of methyl ethyl ketone peroxide, 1.5 parts of cobalt isooctanoate and 100 parts of silicon carbide, and the wear-resistant daub is composed of 100 parts of epoxy phenolic vinyl resin, 0.7 part of methyl ethyl ketone peroxide, 1.5 parts of cobalt isooctanoate and 200 parts of silicon carbide.
Comparative example 2
This comparative example differs from example 1 only in that: the ratio of the primer, the strengthening liquid and the wear-resistant daub in the comparative example is different from that in example 1, specifically, the primer in the example is composed of 100 parts of epoxy phenolic vinyl resin, 2.5 parts of methyl ethyl ketone peroxide and 5 parts of cobalt isooctanoate, the strengthening liquid is composed of 100 parts of epoxy phenolic vinyl resin, 2.5 parts of methyl ethyl ketone peroxide, 5 parts of cobalt isooctanoate and 100 parts of silicon carbide, and the wear-resistant daub is composed of 100 parts of epoxy phenolic vinyl resin, 2.5 parts of methyl ethyl ketone peroxide, 5 parts of cobalt isooctanoate and 200 parts of silicon carbide.
Comparative example 3
This comparative example differs from example 1 only in that: the ratio of the primer, the strengthening liquid and the wear-resistant daub in the comparative example is different from that in example 1, specifically, the primer in the comparative example consists of 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide and 3 parts of cobalt isooctanoate, the strengthening liquid consists of 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 80 parts of silicon carbide, and the wear-resistant daub consists of 100 parts of epoxy phenolic vinyl resin, 1.5 parts of methyl ethyl ketone peroxide, 3 parts of cobalt isooctanoate and 170 parts of silicon carbide.
Comparative example 4
This comparative example differs from example 1 only in that: the ratio of the primer, the strengthening liquid and the wear-resistant daub in the comparative example is different from that in example 1, specifically, the primer in the comparative example is composed of 100 parts of epoxy phenolic vinyl resin, 0.5 part of methyl ethyl ketone peroxide and 1 part of cobalt isooctanoate, the strengthening liquid is composed of 100 parts of epoxy phenolic vinyl resin, 0.5 part of methyl ethyl ketone peroxide, 1 part of cobalt isooctanoate and 100 parts of silicon carbide, and the wear-resistant daub is composed of 100 parts of epoxy phenolic vinyl resin, 0.5 part of methyl ethyl ketone peroxide, 1 part of cobalt isooctanoate and 200 parts of silicon carbide.
Comparative example 5
This comparative example differs from example 1 only in that: the ratio of the primer, the reinforcing liquid and the wear-resistant daub in the comparative example is different from that in example 1, specifically, the primer in the comparative example is composed of 100 parts of epoxy phenolic vinyl resin, 4 parts of methyl ethyl ketone peroxide and 6 parts of cobalt isooctanoate, the reinforcing liquid is composed of 100 parts of epoxy phenolic vinyl resin, 4 parts of methyl ethyl ketone peroxide, 6 parts of cobalt isooctanoate and 100 parts of silicon carbide, and the wear-resistant daub is composed of 100 parts of epoxy phenolic vinyl resin, 4 parts of methyl ethyl ketone peroxide, 6 parts of cobalt isooctanoate and 200 parts of silicon carbide.
Comparative example 6
A commercially available desulfurization slurry pipe (model: TL-BJG-002) was used as comparative example 6.
Examples of the experiments
The pipes in examples 1 to 5 and comparative examples 1 to 6 were used under the following conditions: conveying limestone-gypsum slurry, wherein the solid content of the limestone-gypsum slurry is 10% -20%, the pH value is 5-7, the chloride ion content is 20000-30000ppm, the temperature is 60-90 ℃, and the flow rate of the limestone-gypsum slurry is 2 m/s. The pipeline was observed after a period of use, and the specific observations are shown in table 1.
TABLE 1 use of pipes in the examples and comparative examples
As can be seen from Table 1, the pipes in examples 1-5 have complete coatings in the pipes when used for six months, the average abrasion loss of the abrasion parts of the coatings is lower than 0.5mm, and the use conditions of the pipes are better than those of comparative examples 1-6, which shows that the pipes in the invention have good wear resistance and corrosion resistance and long service life, and can effectively reduce the probability of device blockage behind the pipes and environmental accidents.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A method for manufacturing a long-life desulfurization slurry pipeline is characterized by comprising the following steps:
s1, coating a primer: coating a primer on a pipeline substrate to form a primer layer, wherein the primer comprises 95-105 parts of resin, 1-2 parts of initiator and 2-4 parts of accelerator in parts by mass;
s2, laying base layer lining: laying glass fiber cloth soaked by a primer on the primer layer of the pipeline substrate;
s3, applying a mid-a layer liner: laying glass fiber cloth soaked by strengthening liquid on the base lining, wherein the strengthening liquid comprises, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 95-105 parts of silicon carbide;
s4, carrying out primary blade coating of wear-resistant daub: coating wear-resistant daub on the middle-a layer lining to form a base layer wear-resistant daub layer, wherein the raw materials of the wear-resistant daub comprise, by mass, 95-105 parts of resin, 1-2 parts of initiator, 2-4 parts of accelerator and 190-210 parts of silicon carbide;
s5, applying a mid-b layer liner: spreading glass fiber cloth soaked by the strengthening liquid in the step S3 on the wear-resistant mortar layer of the base layer;
s6, applying an inner lining: applying the thick chopped strand mat wetted by the reinforcing liquid in the step S3 and the glass fiber cloth wetted by the reinforcing liquid in the step S3 on the middle-b layer lining in sequence;
s7, secondary blade coating of wear-resistant daub: coating the wear-resistant daub obtained in the step S4 on the inner lining in a blade mode to form an inner wear-resistant daub layer;
s8, brushing strengthening liquid: coating the reinforcing liquid obtained in the step S3 on the inner wear-resistant daub layer;
and S9, curing and solidifying.
2. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: the steps S1-S8 are all carried out in the environment with the temperature of 15-30 ℃ and the relative humidity of less than 80%.
3. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: before step S1, the pipe substrate is subjected to pretreatment including dust removal treatment, degreasing treatment, and rust removal treatment.
4. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: in the steps S2 and S6, the thickness of the glass fiber cloth is 0.2-0.4 mm;
and/or, in step S6, the thick chopped strand mat has a thickness of 1-3 mm;
and/or, in the step S3 and the step S5, the thickness of the glass fiber cloth is 0.4-0.8 mm.
5. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: in the steps S4 and S7, the thicknesses of the base layer wear-resistant daub layer and the inner layer wear-resistant daub layer are 2-3 mm.
6. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: in step S2, the number of layers of glass fiber cloth is 2-3 layers applied on the undercoat layer of the pipe substrate;
and/or, in step S3, the number of layers of fiberglass cloth applied on the base liner is 8-10;
and/or in step S5, the number of the glass fiber cloth layers applied on the base layer wear-resistant daub layer is 3-5;
and/or, in step S6, the thick chopped strand mat is applied to the mid-b liner in a number of layers ranging from 1 to 2 and the fiberglass cloth is applied in a number of layers ranging from 2 to 3.
7. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: in step S9, the natural curing is performed at normal temperature in a dry environment for 15 days or longer.
8. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: the resin is phenolic epoxy vinyl resin, the initiator is methyl ethyl ketone peroxide, and the accelerator is cobalt isooctanoate.
9. The method of manufacturing a long life desulfurization slurry pipe according to claim 1, characterized in that: the acid resistance of the silicon carbide is more than or equal to 95 percent, the water content of the silicon carbide is less than or equal to 0.5 percent, and the fineness of the silicon carbide is as follows: the balance of the 0.15mm sieve mesh is less than or equal to 5 percent, and the balance of the 0.09mm sieve mesh is less than or equal to 30 percent.
10. A long life desulfurization slurry pipe produced by the production method as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014055.2A CN114352846B (en) | 2022-01-06 | 2022-01-06 | Long-life desulfurization slurry pipeline and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014055.2A CN114352846B (en) | 2022-01-06 | 2022-01-06 | Long-life desulfurization slurry pipeline and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114352846A true CN114352846A (en) | 2022-04-15 |
| CN114352846B CN114352846B (en) | 2024-02-06 |
Family
ID=81107779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210014055.2A Active CN114352846B (en) | 2022-01-06 | 2022-01-06 | Long-life desulfurization slurry pipeline and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114352846B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1116572A (en) * | 1965-07-30 | 1968-06-06 | Dunlop Co Ltd | Improvements in chemical-and abrasion-resistant piping |
| GB1498412A (en) * | 1975-03-17 | 1978-01-18 | Spun Concrete Ltd | Aggresive effluent resistant coating |
| JPS54108843A (en) * | 1978-02-15 | 1979-08-25 | Yokohama Rubber Co Ltd:The | Lining material |
| FR2509834A1 (en) * | 1981-07-15 | 1983-01-21 | Havas Pierre | PIPE TUBES, PARTICULARLY FOR ABRASIVE PRODUCTS, AND METHOD FOR MANUFACTURING SUCH PIPES |
| JPS6456545A (en) * | 1987-08-28 | 1989-03-03 | Kubota Ltd | Laminating method of crack-resistant layer to surface of fiber-reinforced resin |
| CN1884890A (en) * | 2006-05-30 | 2006-12-27 | 栗小锋 | Glass fiber reinforced plastic sprinkling tube for desulfurizing tower of electric power plant and preparation method thereof |
| CN2860611Y (en) * | 2005-12-19 | 2007-01-24 | 王亚明 | Glass scale resin liner |
| CN101822936A (en) * | 2010-05-14 | 2010-09-08 | 中建五局第三建设有限公司 | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer |
| WO2013171080A1 (en) * | 2012-05-15 | 2013-11-21 | Contitech Antriebssysteme Gmbh | Resilient item, more particularly drive belt, with a coating |
| CN106318138A (en) * | 2016-08-23 | 2017-01-11 | 浙江德创环保科技股份有限公司 | Ceramic compound steel pipe and processing technology thereof |
| WO2017061944A1 (en) * | 2015-10-09 | 2017-04-13 | Pressure Pipe Relining Sweden Ab | Liner having no coating utilized for relining a heating pipe |
| CN108097007A (en) * | 2017-11-23 | 2018-06-01 | 山东明晟化工工程有限公司 | Ammonia desulfurizing process inside lining anti-corrosive technology |
| CN111720668A (en) * | 2020-07-03 | 2020-09-29 | 张永华 | Pipeline composite wear-resistant functional layer, wear-resistant pipeline inner wall and manufacturing method thereof |
| CN112283461A (en) * | 2020-11-07 | 2021-01-29 | 胜利油田金岛工程安装有限责任公司 | Modified epoxy phenolic aldehyde high-temperature thermal recovery ground pipeline |
-
2022
- 2022-01-06 CN CN202210014055.2A patent/CN114352846B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1116572A (en) * | 1965-07-30 | 1968-06-06 | Dunlop Co Ltd | Improvements in chemical-and abrasion-resistant piping |
| GB1498412A (en) * | 1975-03-17 | 1978-01-18 | Spun Concrete Ltd | Aggresive effluent resistant coating |
| JPS54108843A (en) * | 1978-02-15 | 1979-08-25 | Yokohama Rubber Co Ltd:The | Lining material |
| FR2509834A1 (en) * | 1981-07-15 | 1983-01-21 | Havas Pierre | PIPE TUBES, PARTICULARLY FOR ABRASIVE PRODUCTS, AND METHOD FOR MANUFACTURING SUCH PIPES |
| JPS6456545A (en) * | 1987-08-28 | 1989-03-03 | Kubota Ltd | Laminating method of crack-resistant layer to surface of fiber-reinforced resin |
| CN2860611Y (en) * | 2005-12-19 | 2007-01-24 | 王亚明 | Glass scale resin liner |
| CN1884890A (en) * | 2006-05-30 | 2006-12-27 | 栗小锋 | Glass fiber reinforced plastic sprinkling tube for desulfurizing tower of electric power plant and preparation method thereof |
| CN101822936A (en) * | 2010-05-14 | 2010-09-08 | 中建五局第三建设有限公司 | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer |
| WO2013171080A1 (en) * | 2012-05-15 | 2013-11-21 | Contitech Antriebssysteme Gmbh | Resilient item, more particularly drive belt, with a coating |
| WO2017061944A1 (en) * | 2015-10-09 | 2017-04-13 | Pressure Pipe Relining Sweden Ab | Liner having no coating utilized for relining a heating pipe |
| CN106318138A (en) * | 2016-08-23 | 2017-01-11 | 浙江德创环保科技股份有限公司 | Ceramic compound steel pipe and processing technology thereof |
| CN108097007A (en) * | 2017-11-23 | 2018-06-01 | 山东明晟化工工程有限公司 | Ammonia desulfurizing process inside lining anti-corrosive technology |
| CN111720668A (en) * | 2020-07-03 | 2020-09-29 | 张永华 | Pipeline composite wear-resistant functional layer, wear-resistant pipeline inner wall and manufacturing method thereof |
| CN112283461A (en) * | 2020-11-07 | 2021-01-29 | 胜利油田金岛工程安装有限责任公司 | Modified epoxy phenolic aldehyde high-temperature thermal recovery ground pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114352846B (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101694807B1 (en) | Mortar with chloride resistance and acid resistance for repairing and reinforcing concrete using eco-friendly green cement, finishing materials for protecting concrete surface and method for repairing and reinforcing concrete using the same | |
| CN110156380B (en) | Densely-mixed asphalt mixture prepared from modified steel slag and preparation method thereof | |
| CN113402243A (en) | Method for improving durability of concrete product by using carbonized coating | |
| CN107246123B (en) | A kind of terrace composite coating and its preparation process | |
| CN105176324A (en) | Wear-resisting impact-resisting anti-corrosion coating layer and construction method thereof | |
| JP5938976B2 (en) | Repair method for concrete structures | |
| CN110924302A (en) | SMA modified asphalt concrete bridge deck pavement based on improved coarse aggregate stone interface | |
| KR101643523B1 (en) | Method for repairing reinforced concrete structure improved chloride iontophoretic resistence and anticorrosive | |
| CN102659364A (en) | Spraying mortar and manufacture method thereof | |
| JP5957944B2 (en) | Repair method for concrete structures | |
| CN108729321B (en) | Prefabricated orthotropic plate steel bridge deck pavement structure and pavement method thereof | |
| KR20060113059A (en) | Lining form of construction work by composite and this composite that reinforced concrete structure does lining | |
| JP3979130B2 (en) | Corrosion environment facility mortar composition and concrete structure corrosion prevention method | |
| KR101636030B1 (en) | Repair-Reinforcement method of Concrete Structure and Neutralization Prevention using Polymer Mortar Composition and Bind pin | |
| CN114352846A (en) | Long-life desulfurization slurry pipeline and manufacturing method thereof | |
| CN101250903A (en) | Surface coating anticorrosion concrete and construction method | |
| JP4180949B2 (en) | Acid resistant cement composition | |
| CN116657513A (en) | Double arch bridge crack reinforcing structure and reinforcing method | |
| CN208180437U (en) | Pervious concrete | |
| CN114685140B (en) | Ecological protection layer for improving concrete durability, preparation method and application thereof | |
| CN105696358A (en) | Environment-friendly type composite waterproof coiled material and production method thereof | |
| CN110202844B (en) | Chimney FRP (fiber reinforced plastic) anticorrosive lining and preparation method thereof | |
| JP2003120041A (en) | Repair method for concrete deteriorated by salt damage | |
| CN110950606B (en) | Concrete with antirust function and application process thereof | |
| DE2620669A1 (en) | Cement mortar corrosion protection layer - contg. unsaponifiable resin, esp. acrylic resin, applied inside pipe from rotating wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |